Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / chris sullens
uses pulsed width modulation to control speed of
motor.Siemens.com has an EXCELLENT!!!! web site. Too much 4
me 2 list about. it is ACTUALLY DC that is pulsed to
motor.480 VAC X 1.414=678.72 Peak 2 Peak voltage DC Volts
at motor.Standing Wave can be up close 2 3000 VOLTS!!! on a
480 motor it is a fundamental of the Frenquency and
length.In which case U need 2 add a REACTOR [Filter] or
DELTA/WYE ISOLATION XFMR.If drive is to DC motor DO NOT
bond XO.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
what is R Core Transformer. how it differs from normal transformers. dont search in net and post the answer.
why single phase to grd test in HV cable?why not 2 phase at a time?
What is George phenomena to start the synchronus machine?
What is the difference between a Root Locus plot and a Bode plot?
if grounding is notdone at regular intervals for long distance transmission, will the load connected at distribution end receive voltage during negativehalf cycle of the sine wave?
in basic 2 phase will short means tripping the power but spot welding 2 phase shorting but not tripping it will welded why.....(Q)
Why neutral cable carry current.
when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??
Explain Even and Odd signals?
i have seen one 8.4 MW synchronous motor in a plant located in bellary it is fixed with brushless rotary rectifier ,anybody can explain its start up principle
A 230V dc shunt wound motor has an armature resistance of 0,15Ω.When operating on no load at 650 rev/min the armature current is 6A . The motor takes a full load current of 85A. Calculate the full load speed if the field flux is (i) maintained constant (ii)reduced by 0,03
What do you mean by dependent and independent voltage sources?
if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)
I am having a 1500 KVA transformer whose secondary current is 2086A and my connected load is 1000 KVA, I am having 400 KVAR APFCR for PF improvement what ratio of CT should i install in LT EB Bus to get optimum PF improvement?
How RTCC panel is working and give single line diagram for RTCC with transformer?
